Danfoss VLT 2800 Series User manual

VLT®2800 Series
■Contents
Introduction to VLT 2800 ............................................................................... 3
Software version ...................................................................................................... 3
General warning ...................................................................................................... 4
These rules concern your safety ............................................................................. 4
Warning against unintended start ........................................................................... 4
Control unit .............................................................................................................. 5
Manual initialisation ................................................................................................. 5
Hand Auto ................................................................................................................ 6
Automatic motor tuning ............................................................................................ 7
Programming ....................................................................................................... 8
Operation & Display ................................................................................................. 8
Load and Motor ..................................................................................................... 15
References & Limits .............................................................................................. 24
Inputs and outputs ................................................................................................. 31
Special functions .................................................................................................... 40
Installation .......................................................................................................... 48
Mechanical dimensions ......................................................................................... 48
Mechanical installation ........................................................................................... 50
General information about electrical installation ................................................... 51
EMC-correct electrical installation ......................................................................... 52
Electrical installation .............................................................................................. 53
Safety clamp .......................................................................................................... 56
Pre-fuses ................................................................................................................ 56
Mains connection ................................................................................................... 56
Motor connection ................................................................................................... 56
Direction of motor rotation ..................................................................................... 57
Parallel connection of motors ................................................................................ 57
Motor cables .......................................................................................................... 57
Motor thermal protection ....................................................................................... 57
Brake connection ................................................................................................... 58
Earth connection .................................................................................................... 58
Load sharing .......................................................................................................... 58
Control of mechanical brake .................................................................................. 58
Access to control terminals ................................................................................... 59
Electrical installation, control cables ...................................................................... 59
Electrical installation, controlterminals .................................................................. 61
Relay connection ................................................................................................... 61
VLT Software Dialog .............................................................................................. 61
Connection examples ............................................................................................ 63
All about VLT 2800 ......................................................................................... 65
Order form ............................................................................................................. 65
Display readout ...................................................................................................... 66
Warnings/alarm messages .................................................................................... 66
Warning words, extended status words and Alarm words .................................... 70
Special conditions .................................................................................................. 71
Temperature-dependentswitch frequency .............................................................. 71
GalvanicIsolation (PELV) ....................................................................................... 72
EMC emission ........................................................................................................ 72
MG.28.A5.02 - VLT is a registered Danfoss trade mark 1

VLT®2800 Series
UL Standard ........................................................................................................... 74
General technical data ........................................................................................... 75
Technical data, mains supply 1 x 220 - 240 V / 3 x 200-240V ............................. 79
Technical data, mains supply 3 x 380 - 480 V ...................................................... 80
Available literature ................................................................................................. 81
Supplied with the unit ............................................................................................ 81
Factory Settings ..................................................................................................... 82
MG.28.A5.02 - VLT is a registered Danfoss trade mark
2

VLT®2800 Series
■Software version
195NA009.14
VLT 2800 Series
Operating instructions
Software version: 2.3x
These operating instructions can be used for all VLT 2800
Series frequency converters with software version 2.3x.
The software version number can be seen from parameter
640 Software version no.
NB!:
Indicates something to be noted by the reader.
Indicates a general warning.
Indicates a high-voltage warning.
MG.28.A5.02 - VLT is a registered Danfoss trade mark 3
Introduction to VLT 2800

VLT®2800 Series
■General warning
The voltage of the frequency converter is
dangerous whenever the converter is con-
nected to mains. Incorrect fitting of the
motor or frequency converter may cause damage to
the equipment, serious injury or death. Conse-
quently, it is essential to comply with the instructions
in this manual as well as local and national rules and
safety regulations
■These rules concern your safety
1. The frequency converter must be disconnected
from the mains if repair work is to be carried out.
Check that the mains supply has been discon-
nected and that the prescribed time has passed
before removing motor and mains plugs.
2. The [STOP/RESET] key on the control panel of
the frequency converter does not disconnect the
equipment from mains and is thus not to be used
as a safety switch.
3. The unit must be properly connected to the earth,
the user must be protected against the supply
voltage and the motor must be protected against
overloading pursuant to prevailing national and lo-
cal regulations.
4. The earth leakage currents are higher than 3.5
mA.
5. Protection against motor overload is not included
in the factory setting. If this function is required,
set parameter 128 Motor thermal protection to
data value ETR trip or data value ETR warning.
For the North American market: The ETR func-
tions provide overload protection of the motor,
class 20, in accordance with NEC.
6. Do not remove the plugs for the motor - and
mains supply while the frequency converter is
connected to mains. Check that the mains supply
has been disconnected and that the prescribed
time has passed before removing motor and
mains plugs.
7. Note that the frequency converter has more volt-
age inputs than L1, L2 and L3 when the DC bus
terminals are used. Check that all voltage inputs
are disconnected and that the prescribed time
has passed before repair work is commenced.
■Warning against unintended start
1. The motor can be brought to a stop by means of
digital commands, bus commands, references or
a local stop, while the frequency converter is con-
nected to mains. If personal safety considerations
make it necessary to ensure that no unintended
start occurs, these stop functions are not suffi-
cient.
2. While parameters are being changed, the motor
may start. Consequently, the stop key [STOP/RE-
SET] must always be activated, following which
data can be modified.
3. A motor that has been stopped may start if faults
occur in the electronics of the frequency con-
verter, or if a temporary overload or a fault in the
supply mains or the motor connection ceases.
195NA139.10
Warning:
It can be extremely dangerous to touch the electrical parts
even when the mains supply has been disconnected.
Also ensure that other voltage inputs are disconnected
from load sharing, for example (sharing of DC intermediate
circuit). For VLT 2800: wait at least 4 minutes.
MG.28.A5.02 - VLT is a registered Danfoss trade mark
4

VLT®2800 Series
■Control unit
On the front of the frequency converter there is a
control panel.
The control panel is divided into four function groups:
1. Six-digit LED display.
2. Keys for changing parameters and shifting display
function.
3. Indicator lamps.
4. Keys for local operation.
All displays of data are in the form of a six-digit LED
display capable of showing one item of operating
data continuously during normal operation. As a
supplement to the display, there are three indicator
lamps for indication of mains connection (ON), warn-
ing (WARNING) and alarm (ALARM). Most of the
frequency converter’s parameter Setups can be
changed immediately via the control panel, unless
this function has been programmed as Locked [1]
via parameter 018 Lock for data changes.
■Control keys
[QUICK MENU] allows access to the parameters
used for the Quick menu.
The[QUICK MENU] key is also used if a change to a
parameter value is not to be implemented.
See also [QUICK MENU] + [+].
[CHANGE DATA] is used for changing a setting.
The [CHANGE DATA] key is also used for confirming
a change of parameter settings.
[+] / [-] are used for selecting parameters and for
changing parameter values.
These keys are also used in Display mode for se-
lecting the display of an operating value.
The [QUICK MENU] + [+] keys must be pressed at
the same time to give access to all parameters. See
Menu mode.
[STOP/RESET] is used for stopping the connected
motor or for resetting the frequency converter after a
trip.
Can be selected as Active [1] or Not active [0] via
parameter 014 Local stop/reset. In Display mode,
the display will flash if the stop function is activated.
NB!:
If the [STOP/RESET] key is set at Not ac-
tive [0] in parameter 014 Local stop/reset,and
there is no stop command via the digital inputs or
serial communication, the motor can only be
stopped by disconnecting the mains voltage to the
frequency converter.
[START] is used for starting the frequency converter.
It is always active, but the [START] key cannot over-
ride a stop command.
■Manual initialisation
Disconnect mains voltage. Hold the [QUICK MENU]
+ [+] + [CHANGE DATA] keys down while simultane-
ously reconnecting the mains voltage. Release the
keys; the frequency converter has now been pro-
grammed for the factory setting.
MG.28.A5.02 - VLT is a registered Danfoss trade mark 5
Introduction to VLT 2800

VLT®2800 Series
■Display readout states
Display mode
In normal operation, one item of operating data can
be displayed continuously at the operator’sown
choice. By means of the [+/-] keys the following op-
tions can be selected in Display mode:
- Output frequency [Hz]
- Output current [A]
- Output voltage [V]
- Intermediate circuit voltage [V]
- Output power [kW]
Menu mode
In order to enter the Menu mode [QUICK MENU] +
[+] must be activated at the same time.
In Menu mode, most of the frequency converter
parameters can be changed. Scroll through the pa-
rameters using the [+/-] keys. While scrolling in the
Menu mode proceeds, the parameter number will
flash.
The display shows that the setting in parameter 102
Motor power PM,N is 0.75. In order to change the
value of 0.75, [CHANGE DATA] must first be acti-
vated; the parameter value can then be changed
using the [+/-] keys.
If for a given parameter the display shows three dots
at the right, it means that the parameter value has
more than three digits. In order to see the value, ac-
tivate [CHANGE DATA].
The display shows that in parameter 128 Motor ther-
mal protection the selection made is Thermistor trip
[2].
Quick menu
Using the [QUICK MENU] key, it is possible to
access the 12 most important parameters of the fre-
quency converter. After programming, the frequency
converter is in most cases ready for operation.
When the [QUICK MENU] key is activated in Display
mode, the Quick menu starts. Scroll through the
quick menu using the [+/-] keys and change the data
values by first pressing [CHANGE DATA] and then
changing the parameter value with the [+/-] keys.
TheQuick menu parameters are:
•Par. 102 Motor power PM,N
•Par. 103 Motor voltage UM,N
•Par. 104 Motor frequency fM,N
•Par. 105 Motor current IM,N
•Par. 106 Rated motor speed nM,N
•Par. 107 Automatic motor adaption.
•Par. 204 Minimum reference RefMIN
•Par. 205 Maximum reference RefMAX
•Par. 207 Ramp-up time
•Par. 208 Ramp-down time
•Par. 002 Local/remote operation
•Par. 003 Local reference
Parameter 102 - 106 can be read out from the mo-
tor’s nameplate.
■Hand Auto
During normal operation the frequency converter is
in Auto mode, where the reference signal is given
externally, analog or digital via the control terminals.
However, in Hand mode, it is possible to give the ref-
erence signal locally via the control panel.
MG.28.A5.02 - VLT is a registered Danfoss trade mark
6

VLT®2800 Series
On the control terminals, the following control signals
will remain active when Hand mode is activated:
•Hand Start (LCP2)
•Off Stop (LCP2)
•Auto Start (LCP2)
•Reset
•Coasting Stop Inverse
•Reset and Coasting Stop Inverse
•Quick Stop Inverse
•Stop Inverse
•Reversing
•DC Braking Inverse
•Setup Select LSB
•Setup Select MSB
•Thermistor
•Precise Stop Inverse
•Precise Stop/Start
•Jog
•Stop Command Via Serial Comm.
Switching between Auto- and Hand mode:
By activating the [Change Data] key in [Display
Mode], the display will indicate the mode of the fre-
quency converter.
Scroll up/down in order to switch to Hand mode:
When the frequency converter is in Hand mode the
readout will be like:
and the reference can be changed by using the fol-
lowing keys:
NB!:
Please note, that
parameter 020 may block the choice of mode.
Automatic motor tuning
Automatic motor tuning (AMT) is performed as fol-
lows:
1. In parameter 107 Automatic motor tuning select
data value [2]. “107”will now flash, and “2”will
not flash.
2. AMT is activated by pressing start. “107”will now
flash and dashes will move from left to right in the
data value field.
3. When “107”appears once more with the data
value [0], AMT is complete. Press [STOP/RE-
SET] to save the motor data.
4. “107”will then continue to flash with the data
value [0]. You can now proceed.
MG.28.A5.02 - VLT is a registered Danfoss trade mark 7
Introduction to VLT 2800

VLT®2800 Series
■Operation & Display
001
001 Language
(LANGUAGE)
Value:
✭English (ENGLISH) [0]
German (DEUTSCH) [1]
French (FRANCAIS) [2]
Danish (DANSK) [3]
Spanish (ESPANOL) [4]
Italian (ITALIANO) [5]
Function:
This parameter is used to choose the language to
be shown in the display whenever the LCP control
unit is connected.
Description of choice:
There is a choice of the languages shown. The fac-
tory setting may vary.
002
002 Local/remoteoperation
(OPERATION SITE)
Value:
✭Remote operation (REMOTE) [0]
Local operation (LOCAL) [1]
Function:
There is a choice of two different modes of operation
of the frequency converter; Remote operation [0] or
Local operation [1]. See also parameter 013 Local
control if Local operation [1] is selected.
Description of choice:
If Remote operation [0] is selected, the frequency
converter is controlled via:
1. the control terminals or via serial communication.
2. The [START] key. This cannot, however, override
stop commands transmitted via the digital inputs
or via serial communication.
3. The [STOP/RESET] and [JOG] keys, on the con-
dition that these are active.
If Local operation [1], is selected, the frequency con-
verter is controlled via:
1. the [START] key. This cannot, however, override
stop commands via the digital inputs (see param-
eter 013 Local control).
2. The [STOP/RESET] and [JOG] keys, on the con-
dition that these are active.
3. The [FWD/REV] key, on the condition that is has
been selected as active in parameter 016 Local
reversing, and that parameter 013 Local control is
set at Local control and open loop [1] or Local
control as parameter 100 [3]. Parameter 200 Out-
put frequency range is set at Both directions.
4. parameter 003 Local reference where the refer-
ence can be set using the [+] and [-] keys.
5. an external control command that can be con-
nected to the digital inputs (see parameter 013
Local control).
NB!:
The [JOG] and [FWD/REV]
keys are located on the LCP control unit.
003
003 Local reference
(LOCAL REFERENCE)
Value:
Par.013 Local control must be set to [1] or [2]:
0-f
MAX (par. 202) ✭000,000.000
Par. 013 Local control must be set to [3] or [4] and
parameter 203 Reference/feedback range to [0]:
RefMIN - RefMAX (par. 204-205) ✭000,000.000
Par. 013 Local control must be set to [3] or [4] and
parameter 203 Reference/feedback range to [1]:
- RefMAX - + RefMAX (par. 204-205) ✭000,000.000
Function:
In this parameter, the local reference can be set
manually. The unit of the local reference depends on
the configuration selected in parameter 100 Configu-
ration.
Description of choice:
In order to protect the local reference, parameter
002 Local/remote operation must be set to Local op-
eration [1]. Local reference cannot be set via serial
communication.
004
004 Active Setup
(ACTIVE SETUP)
Value:
Factory Setup (FACTORY SETUP) [0]
✭Setup 1 (SETUP 1) [1]
Setup 2 (SETUP 2) [2]
Setup 3 (SETUP 3) [3]
Setup 4 (SETUP 4) [4]
Multi Setup (MULTI SETUP) [5]
Function:
The active parameter Setup is selected here. All pa-
rameters can be programmed in four individual
parameter Setups. Shifts between Setups can be
made in this parameter via a digital input or via se-
rial communication.
✭= factory setting. () = display text [] = value for use in communication via serial communication port
MG.28.A5.02 - VLT is a registered Danfoss trade mark
8

VLT®2800 Series
Description of choice:
Factory Setup [0] contains the factory-set parameter
values. Setup 1-4 [1]-[4] are four individual Setups
which can be selected as required. Multi Setup [5] is
used where remote-controlled shifts between the
four Setups via a digital input or via serial communi-
cation is required.
005
005 Programming Setup
(EDIT SETUP)
Value:
Factory Setup (FACTORY SETUP) [0]
Setup 1 (SETUP 1) [1]
Setup 2 (SETUP 2) [2]
Setup 3 (SETUP 3) [3]
Setup 4 (SETUP 4) [4]
✭Active Setup (ACTIVE SETUP) [5]
Function:
You can select which Setup you want to programme
during operation (applies both via the control panel
and the serial communication port). It is, for exam-
ple, possible to programme Setup 2 [2], while the
active Setup is set to Setup 1 [1] in parameter 004
Active Setup.
Description of choice:
Factory Setup [0] contains the factory-set data and
can be used as a source of data if the other Setups
are to be reset to a known status. Setup 1-4 [1]-[4]
are individual Setups that can be programmed freely
during operation. If Active Setup [5] is selected, the
programming Setup will be equal to parameter 004
Active Setup.
NB!:
If data is modified or copied to the active
Setup, the modifications have an immediate
effect on the unit’s operation.
006
006 Setup copying
(SETUP COPY)
Value:
✭No copying (NO COPY) [0]
Copy to Setup 1 from #
(COPY TO SETUP 1 ) [1]
Copy to Setup 2 from #
(COPY TO SETUP 2) [2]
Copy to Setup 3 from #
(COPY TO SETUP 3) [3]
Copy to Setup 4 from #
(COPY TO SETUP 4) [4]
Copy to all Setups from # (COPY TO ALL) [5]
Function:
You can copy from the selected active Setup in pa-
rameter 005 Programming setup to the selected
Setup or Setups in this parameter.
NB!:
Copying is only possible in Stop (motor
stopped in connection with a stop command).
Description of choice:
Copying begins when the required copying function
has been selected and the [OK]/[CHANGE DATA]
key has been pushed. The display indicates when
copying is in progress.
007
007 LCP copy
(LCP COPY)
Value:
✭No copying (NO COPY) [0]
Upload all parameters (UPL. ALL PAR.) [1]
Download all parameters (DWNL. ALL PAR.) [2]
Download size-independent parameters
(DWNL.OUTPIND.P AR.) [3]
Function:
Parameter 007 LCP copy is used if you want to use
the LCP2 control panel’s integral copy function. The
function is used ifyou want to copy all parameter se-
tups from one frequency converter to another by
moving the LCP2 control panel.
Description of choice:
Select Upload all parameters [1] if you want all pa-
rameter values to be transferred to the control panel.
Select Download all parameters [2] if all parameter
values transferred are to be copied to the frequency
converter to which the control panel is attached. Se-
lect Download size-independent par. [3] if you only
want to downloade the size-independent parameters.
This is used when downloading to a frequency con-
verter with a different rated power size than that from
which the parameter setup originates.
✭= factory setting. () = display text [] = value for use in communication via serial communication port
MG.28.A5.02 - VLT is a registered Danfoss trade mark 9
Programming

VLT®2800 Series
NB!:
Upload/download can only be performed in
stop mode. Download can only be performed
to a frequency converter with the same software
version number, see parameter 626 Database identi-
fication no.
008
008 Display scaling of output frequency
(FREQUENCY SCALE)
Value:
0.01 - 100.00 ✭1.00
Function:
In this parameter, the factor is selected by which the
output frequency is to be multiplied. The value is
shown in the display, provided parameters 009-012
Display readout have been set to Output frequency x
scaling [5].
Description of choice:
Set the required scaling factor.
009
009 Large display readout
(DISPLAY LINE 2)
Value:
No readout (NONE) [0]
Resulting reference [%]
(REFERENCE [%]) [1]
Resulting reference [unit]
(REFERENCE [UNIT]) [2]
Feedback [unit] (FEEDBACK [UNIT]) [3]
✭Frequency [Hz] (FREQUENCY [HZ]) [4]
Output frequency x scaling
(FREQUENCY X SCALE) [5]
Motor current [A] (MOTOR CURRENT [A]) [6]
Torque [%] (TORQUE [%]) [7]
Power [kW] (POWER [KW]) [8]
Power [HP] (POWER [HP][US]) [9]
Motor voltage [V]
(MOTOR VOLTAGE [V]) [11]
DC link voltage [V]
(DC LINK VOLTAGE [V]) [12]
Thermal load motor [%]
(MOTOR THERMAL [%]) [13]
Thermal load [%]
(FC. THERMAL[%]) [14]
Running hours [Hours]
(RUNNING HOURS]) [15]
Digital input [Bin]
(DIGIT AL INPUT[BIN]) [16]
Analog input 53 [V]
(ANALOG INPUT 53 [V]) [17]
Analog input 60 [mA]
(ANALOG INPUT 60 [MA])
[19]
Pulse reference [Hz]
(PULSE REF. [HZ]) [20]
External reference [%]
(EXTERNAL REF. [%]) [21]
Status word [Hex] (STATUS WORD [HEX]) [22]
Heatsink temperature [

C]
(HEATSINK TEMP [

C]) [25]
Alarm word [Hex] (ALARM WORD [HEX]) [26]
Control word [Hex] (CONTROL WORD [HEX]) [27]
Warning word [Hex]
(WARNING WORD [HEX]) [28]
Extended status word [Hex]
(EXT. STATUS [HEX]) [29]
Communication option card warning
(COMM OPT WARN [HEX]) [30]
Pulse count
(PULSE COUNTER) [31]
Function:
In this parameter you can select the data value that
you wish to display in the LCP control unit display
line 2 when the frequency converter is switched on.
The display will also be included in the scrollbar in
display mode. In parameters 010-012 Display read-
out you can select a further three data values, which
are displayed in display line 1.
Description of choice:
No readout can only be selected in parameters 010-
012 Small display readout.
Resulting reference [%] gives, as a percentage, the
resulting reference in the range from Minimum refer-
ence, RefMIN to Maximum reference, RefMAX.
Reference [unit] gives the resulting reference with
unit Hz in Open loop.InClosed loop the reference
unit is selected in parameter 416 Process units.
Feedback [unit] gives the resulting signal value
using the unit/scaling selected in parameter 414 Min-
imum feedback, FBLOW, 415 Maximum feedback,
FBHIGH and 416 Process units.
Frequency [Hz] gives the output frequency of the fre-
quency converter.
Output frequency x scaling [-] equals the present
output frequency fMmultiplied by the factor set in pa-
rameter 008 Display scaling of output frequency.
Motor current [A] gives the phase current of the mo-
tor measured as an effective value.
Torque [%] denotes the motor’s present load in rela-
tion to the motor’s rated torque.
✭= factory setting. () = display text [] = value for use in communication via serial communication port
MG.28.A5.02 - VLT is a registered Danfoss trade mark
10

VLT®2800 Series
Power [kW] gives the present power that the motor is
absorbing in kW.
Power [HP] gives the present power that the motor is
absorbing in HP.
Motor voltage[V] gives the voltage supplied to the
motor.
DC link voltage [V] gives the intermediate circuit volt-
age of the frequency converter.
Thermal load motor [%] gives the calculated/esti-
mated load on the motor. 100 % is the cut-out limit.
Thermal load [%] gives the calculated/estimated
thermal load on the frequency converter. 100 % is
the cut-out limit.
Running hours [Hours] gives the number of hours
that the motor has tun since the last reset in param-
eter 619 Reset of running hours counter.
Digital input [Binary code] gives the signal status
from the 5 digital inputs (18, 19, 27, 29 and 33). Ter-
minal 18 corresponds to the bit on the extreme left.
0
`’= no signal, 1` ’= signal connected.
Analog input 53 [V] gives the voltage value of termi-
nal 53.
Analog input 60 [mA] gives the present value of ter-
minal 60.
Pulse reference [Hz] gives the reference in Hz con-
nected to terminal 33.
External reference [%] gives the sum of external ref-
erences as a percentage (sum of analogue/pulse/
serial communication) in the range from Minimum
reference, RefMIN to Maximum reference, RefMAX.
Status word [Hex] gives one or several status condi-
tions in a Hex code. See Serial communication in
the Design Guide for further information.
Heatsink temp.[

C] gives the present heatsink tem-
perature of the frequency converter. The cut-out limit
is 90-100

C, while cutting back in occurs at 70 ± 5

C.
Alarm word [Hex] gives one or several alarms in hex
code. See Serial communication in the Design
Guide for further information.
Control word [Hex] gives the control word for the fre-
quency converter. See Serial communication in the
Design Guide for further information.
Warning word [Hex] gives one or several warnings in
hex code. See Serial communication in the Design
Guide for further information.
Extended status word [Hex] gives one or several sta-
tus modes in Hex code. See Serial communication
in the Design Guide for further information.
Communication option card warning [Hex] gives a
warning word if there is a fault in the communication
bus. Only active if communication options are in-
stalled.
If there are no communication options 0 Hex is dis-
played.
Pulse count gives the number of pulses that the unit
has registered.
010
010 Small display line 1.1
(DISPLAY LINE 1.1)
Value:
See par. 009 Large display readout
✭Reference [%] [1]
Function:
In this parameter, the first of three data values can
be selected that is to be displayed in the LCP control
unit display, line 1, position 1. This is a useful func-
tion, e.g. when setting the PID regulator, as it gives
a view of process reactions to reference changes.
The display readout is activated by pushing the
[DISPLAY STATUS] key.
Description of choice:
See parameter 009 Large display readout.
011
011 Small display readout 1.2
(DISPLAY LINE 1.2)
Value:
See parameter 009 Large display readout
✭Motor current [A][6]
Function:
See the functional description given under parameter
010 Small display readout.
✭= factory setting. () = display text [] = value for use in communication via serial communication port
MG.28.A5.02 - VLT is a registered Danfoss trade mark 11
Programming

VLT®2800 Series
Description of choice:
See parameter 009 Large display readout.
012
012 Small display readout 1.3
(DISPLAY LINE 1.3)
Value:
See parameter 009 Large display readout
✭Power [kW][8]
Function:
See the functional description given under parameter
010 Small display readout.
Description of choice:
See parameter 009 Large display readout.
013
013 Local control
(LOC CTRL/CONFIG.)
Value:
Local not active (DISABLE) [0]
Local control and open loop
(LOC CTRL/OPEN LOOP) [1]
Remote-operated control and open loop
(LOC+DIG CTRL/AS P100) [2]
Local control as parameter 100
(LOC CTRL/AS P100) [3]
✭Remote-operated control as parameter 100
(LOC+DIG CTRL/AS P100) [4]
Function:
This is where the required function is selected if, in
parameter 002 Local/remote operation, Local opera-
tion [1] has been chosen.
Description of choice:
If Local not active [0] is selected, it is not possible to
set a reference via parameter 003 Local reference.
In order to enable a shift to Local not active [0], pa-
rameter 002 Local/remote operation must be set to
Remote operation [0].
Local control and open loop [1] is used if the motor
speed is to be set via parameter 003 Local refer-
ence. When this choice is made, parameter 100
Configuration automatically shifts to Speed regula-
tion, open loop [0].
Remote-operated control and open loop [2] functions
in the same way as Local control and open loop [1];
however, the frequency converter can also be con-
trolled via the digital inputs.
Local control as parameter 100 [3] is used when the
motor speed is to be set via parameter 003 Local
reference, but without parameter 100 Configuration
automatically shifting to Speed regulation, open loop
[0].
Remote-operated control as parameter 100 [4]
works the same way as Local control as parameter
100 [3]; however, the frequency converter can also
be controlled via the digital inputs.
Shifting from Remote operation to Local operation in
parameter 002 Local/remote operation, while this pa-
rameter has been set to Remote-operated control
and open loop [1]: The present motor frequency and
direction of rotation will be maintained. If the present
direction of rotation does not respond to the revers-
ing signal (negative reference), the reference will be
set to 0.
Shifting from Local operation to Remote operation in
parameter 002 Local/remote control, while this pa-
rameter has been set to Remote-operated control
and open loop [1]: The configuration selected in pa-
rameter 100 Configuration will be active. The shift
will be smooth.
Shifting from Remote control to Local control in
parameter 002 Local/remote operation, while this pa-
rameter has been set to Remote-operated control as
parameter 100 [4]: the present reference will be
maintained. If the reference signal is negative, the
local reference will be set to 0.
Shifting from Local operation to Remote operation in
parameter 002 Local/remote operation, while this pa-
rameter has been set to Remote operation: The
local reference will be replaced by the remote-
operated reference signal.
014
014 Local stop
(LOCAL STOP)
Value:
Not active (DISABLE) [0]
✭Active (ENABLE) [1]
Function:
In this parameter, the local [STOP]-key can be en-
gaged or disengaged on the control panel and on
the LCP control panel.
Description of choice:
If Not active [0] is selected in this parameter, the
[STOP]-key will be inactive.
✭= factory setting. () = display text [] = value for use in communication via serial communication port
MG.28.A5.02 - VLT is a registered Danfoss trade mark
12

VLT®2800 Series
NB!:
If Not active [0] is selected, the motor can-
not be stopped by means of the [STOP]-key.
015
015 Local jog
(LOCAL JOGGING)
Value:
✭Not active (DISABLE) [0]
Active (ENABLE) [1]
Function:
In this parameter, the jog function on the LCP con-
trol panel can be engaged/disengaged.
Description of choice:
If Not active [0] is selected in this parameter, the
[JOG]-key will be inactive.
016
016 Local reversing
(LOCAL REVERSING)
Value:
✭Not active (DISABLE) [0]
Active (ENABLE) [1]
Function:
In this parameter you can select/deselect the revers-
ing function on the LCP control panel. The key can
only be used if parameter 002 Local/remote opera-
tion is set to Local operation [1] and parameter 013
Localcontrol to Local control, open loop [1] or Local
control as parameter 100 [3].
Description of choice:
If Disable [0] is selected in this parameter, the [FWD/
REV] key will be disabled. See also parameter 200
Output frequency range.
017
017 Local reset of trip
(LOCAL RESET)
Value:
Not active (DISABLE) [0]
✭Active (ENABLE) [1]
Function:
In this parameter, the reset function on the control
panel can be engaged/disengaged.
Description of choice:
If Not active [0] is selected in this parameter, the re-
set function will be inactive.
NB!:
Select Not active [0], only if an external reset
signal has been connected via the digital in-
puts.
018
018 Lock for data changes
(DATA CHANGE LOCK)
Value:
✭Not locked (NOT LOCKED) [0]
Locked (LOCKED) [1]
Function:
In this parameter, it is possible to ’lock’the controls
to disable data changes via the control keys.
Description of choice:
If Locked [1] is selected, data changes in the param-
eters cannot be made; however, it will still be
possible to make data changes via serial communi-
cation. Parameter 009-012 Display readout can be
changed via the control panel.
019
019 Operating mode at power-up, local opera-
tion
(POWER UP ACTION)
Value:
Auto restart, use saved reference (AUTO
RESTART) [0]
✭Forced stop, use saved reference
(LOCAL=STOP) [1]
Forced stop, set ref. to 0
(LOCAL=STOP , REF=0) [2]
Function:
Setting of the required operating mode when the
mains voltage is engaged. This function can only be
active if Local operation [1] has been selected in pa-
rameter 002 Local/remote operation.
Description of choice:
Auto restart, use saved ref. [0] is selected if the fre-
quency converter is to start using the local reference
(set in parameter 003 Local reference) and the start/
stop state given via the control keys immediately
prior to the mains voltage being cut out.
Forced stop, use saved ref. [1] is selected if the fre-
quency converter is to remain stopped when the
mains voltage is engaged, until the [START]-key is
activated. After a start command the motor speed is
ramped up to the saved reference in parameter 003
Local reference.
Forced stop, set ref. to 0 [2] is selected if the fre-
quency converter is to remain stopped when the
✭= factory setting. () = display text [] = value for use in communication via serial communication port
MG.28.A5.02 - VLT is a registered Danfoss trade mark 13
Programming

VLT®2800 Series
mains voltage is cut back in. Parameter 003 Local
reference is to be zeroed.
NB!:
In remote operation (parameter 002 Local/
remote operation) the start/stop state at the
time of mains connection will depend on the external
control signals. If Pulse start [8] is selected in pa-
rameter 302 Digital input, the motor will remain
stopped after mains connection.
020
020 Lock for Hand mode
(LOCK HAND MODE)
Value:
Not active (DISABLE) [0]
✭Active (ENABLE) [1]
Function:
In this parameter you can select whether it should
be possible or not to switch between Auto- and Hand
mode. In Auto mode the frequency converter is con-
trolled by external signals whereas the frequency
converter in Hand mode is controlled via a local ref-
erence directly from the control unit.
Description of choice:
If Not active [0] is selected in this parameter, the
Hand mode function will be inactive. This blocking
can be activated as desired. If Active [1] is selected
you can switch between Auto- and Hand mode. For
further information, see the Control Unit section.
024
024 Userdefined Quick Menu
(USER QUICKMENU)
Value:
✭Not active (DISABLE) [0]
Active (ENABLE) [1]
Function:
In this parameter you can opt out of the standard
setup of the Quick menu key on the control panel
and the LCP2 control panel.
Using this function, in parameter 025 Quick Menu
setup the user can select up to 20 parameters for
the Quick Menu key.
Description of choice:
If not active [0] is selected, the standard setup of the
Quick Menu key is active.
If Active [1] is selected, the user-defined Quick Menu
is active.
025
025 Quick Menu setup
(QUICK MENU SETUP)
Value:
[Index 1 - 20] Value: 0 - 999 ✭000
Function:
In this parameter you define which parameters are
required in the Quick Menu when parameter 024
User-defined Quick Menu is set to Active [1].
´
Up to 20 parameters can be selected for the user-
defined Quick Menu.
NB!:
Please note that this parameter can only be
set using an LCP2 control panel. See Order
form.
Description of choice:
The Quick Menu is set up as follows:
1. Select parameter 025 Quick Menu setup and
press [CHANGE DATA].
2. Index 1 indicates the first parameter in Quick
Menu. You can scroll between the index numbers
using the [+ / -] keys. Select Index 1.
3. Using [< >] you can scroll between the three fig-
ures. Press the [<] key once ad the last number
in the parameter number can be selected using
the [+ / -] keys.
Set Index 1 to 100 for parameter 100 Configura-
tion.
4. Press [OK] when Index 1 has been set to 100.
5. Repeat steps 2 - 4 until all parameters required
have been set to the Quick Menu key.
6. Press [OK] to complete the Quick Menu setup.
If parameter 100 Configuration is selected at Index
1, Quick Menu will start with this parameter every
time Quick Menu is activated.
Please note that parameter 024 User-defined Quick
Menu and parameter 025 Quick Menu setup are re-
set to the factory setting during initialisation.
✭= factory setting. () = display text [] = value for use in communication via serial communication port
MG.28.A5.02 - VLT is a registered Danfoss trade mark
14

VLT®2800 Series
■Load and Motor
100
100 Configuration
(CONFIGURATION)
Value:
✭Speed regulation, open loop
(SPEED OPEN LOOP) [0]
Speed regulation, closed loop
(SPEED CLOSED LOOP) [1]
Process regulation, closed loop
(PROCESS CLOSED LOOP) [3]
Function:
This parameter is used to select the configuration to
which the frequency converter is to be adapted. This
makes adaptation to a given application simple,
since the parameters not used in a given configura-
tion are hidden (not active).
Description of choice:
If Speed regulation, open loop [0] is selected, nor-
mal speed control is obtained (without feedback
signal) with automatic load and slip compensation to
ensure a constant speed at varying loads. Compen-
sations are active, but may be disabled in parameter
134 Load compensation and parameter 136 Slip
compensation as required.
If Speed regulation, closed loop [1] is selected, bet-
ter speed accuracy is obtained. A feedback signal
must be added, and the PID regulator must be set in
parameter group 400 Special functions.
If Process regulation, closed loop [3] is selected, the
internal process regulator is activated to enable pre-
cise regulation of a process in relation to a given
process signal. The process signal can be set to the
relevant process unit or as a percentage. A feed-
back signal must be added from the process and the
process regulator must be set in parameter group
400 Special functions.
101
101 Torque characteristic
(TORQUE CHARACT)
Value:
✭Constant torque
(CONSTANT TORQUE) [1]
Variable torque low
(TORQUE: LOW) [2]
Variable torque medium
(TORQUE: MED) [3]
Variable torque high
(TORQUE: HIGH) [4]
Variable torque low with CT start
(VT LOW CT START) [5]
Variable torque medium with CT start
(VT MED CT START) [6]
Variable torque high with CT start
(VT HIGH CT START) [7]
Special motor mode
(SPECIAL MOTOR MODE) [8]
✭CT = Constant torque
Function:
This parameter enables a choice of principle for
adaptation of the U/f ratio of the frequency converter
to the torque characteristic of the load. See par. 135
U/f ratio.
Description of choice:
If Constant torque [1] is selected, a load-dependent
U/f characteristic is obtained, in which output voltage
and output frequency are increased at increasing
loads in order to maintain constant magnetization of
the motor.
Select Variable torque low [2], Variable torque
medium [3] or Variable torque high [4], if the load is
square (centrifugal pumps, fans).
Variable torque - low with CT start [5], - medium with
CT start [6] or high with CT start [7], are selected if
you need a greater breakaway torque than can be
achieved with the three first characteristics.
NB!:
Load and slip compensation are not active
if variable torque or special motor mode have
been selected.
Select Special motor mode [8], if a special U/f set-
ting is needed that is to be adapted to the present
✭= factory setting. () = display text [] = value for use in communication via serial communication port
MG.28.A5.02 - VLT is a registered Danfoss trade mark 15
Programming

VLT®2800 Series
motor. The break points are set in parameters 423-
428 Voltage/frequency.
NB!:
Please note that if a value set in the name-
plate parameters 102-106 is changed, there
will be an automatic change of parameter 108 Stator
resistance and 109 Stator reactance.
102
102 Motor power PM,N
(MOTOR POWER)
Value:
0.25 - 11 kW ✭Depends on unit
Function:
Here you must set a power value [kW] PM,N, corre-
sponding to the motor’s rated power. The factory
sets a rated power value [kW] PM,N, that depends on
the type of unit.
Description of choice:
Set a value that matches the nameplate data on the
motor. Settings between one size below and one
size over the factory setting are possible.
103
103 Motor voltage UM,N
(MOTOR VOLTAGE)
Value:
For 200 V units: 50 - 999 V ✭230 V
For 400 V units: 50 - 999 V ✭400 V
Function:
This is where to set the rated motor voltage UM,N for
either star Y or delta
1 .
Description of choice:
Select a value that corresponds to the nameplate
data on the motor, regardless of the frequency con-
verter’s mains voltage.
104
104 Motor frequency fM,N
(MOTOR FREQUENCY)
Value:
24-1000 Hz ✭50 Hz
Function:
This is where to select the rated motor frequency
fM,N.
Description of choice:
Select a value that corresponds to the nameplate
data on the motor.
105
105 Motor current IM,N
(MOTOR CURRENT)
Value:
0,01 - IMAX ✭Depends on choice of motor
Function:
The nominal, rated current of the motor IM,N forms
part of the frequency converter calculation of fea-
tures such as torque and motor thermal protection.
Description of choice:
Set a value that corresponds to the nameplate data
on the motor. Set the motor current IM,N taking into
account whether the motor is star-connected Y or
delta-connected
1 .
106
106 Rated motor speed
(MOTOR NOM. SPEED)
Value:
100 - fM,N x 60 (max. 60000 rpm)
✭Depends on parameter 102 Motor power, PM,N
Function:
This is where to set the value that corresponds to
the rated motor speed nM,N that can be seen from
the nameplate data.
Description of choice:
Select a value that corresponds to the nameplate
data on the motor.
NB!:
The max. value equals fM,N x 60. fM,N to be
set in parameter 104 Motor frequency, fM,N.
107
107 Automatic motor tuning, AMT
(AUTO MOTOR TUN.)
Value:
✭Optimisation off (AMT OFF) [0]
Optimisation on (AMT START) [2]
NB!:
AMT is not possible on VLT 2880–82
Function:
Automatic motor tuning is an algorithm that mea-
sures stator resistance RSwithout the motor axle
✭= factory setting. () = display text [] = value for use in communication via serial communication port
MG.28.A5.02 - VLT is a registered Danfoss trade mark
16

VLT®2800 Series
turning. This means that the motor is not delivering
any torque.
AMT can be used with benefit when initialising units
where the user wishes to optimise adjustment of the
frequency converter to the motor being used. This is
used in particular when the factory setting does not
sufficiently cover the motor.
For the best possible tuning of the frequency con-
verter it is recommended that AMT is performed on
a cold motor. It should be noted that repeated AMT
runs can cause heating of the motor, resulting in an
increase in the stator resistance RS. As a rule, how-
ever, this is not critical.
AMT is performed as follows:
Start AMT:
1. Give a STOP signal.
2. Parameter 107 Automatic motor tuning is set at
value [2] Optimisation on.
3. A START signal is given and parameter 107 Auto-
matic motor tuning is reset to [0] when AMT has
been completed.
Complete AMT:
AMT is completed by giving a RESET signal. Pa-
rameter 108 Stator resistance, Rs is updated with
the optimised value.
Interrupting AMT:
AMT can be interrupted during the optimisation pro-
cedure by giving a STOP signal.
When using the AMT function the following points
should be observed:
- For AMT to be able to define the motor parame-
ters as well as possible, the correct type plate
data for the motor connected to the frequency
converter must be keyed into parameters 102 to
106.
- Alarms will appear in the display if faults arise
during tuning of the motor.
- As a rule the AMT function will be able to mea-
sure the RSvalues for motors that are 1-2 times
larger or smaller than the frequency converter’s
nominal size.
- If you wish to interrupt automatic motor tuning,
press the [STOP/RESET] key.
NB!:
AMT may not be performed on motors con-
nected in parallel, nor may setup changes be
made while AMT is running.
The procedure for AMT controlled from the SLCP:
See section entitled Control unit.
Description of choice:
Select Optimisation on [2] if you want the frequency
converter to perform automatic motor tuning.
108
108 Stator resistance RS
(STATOR RESISTAN)
Value:
0.000 - X.XXX

✭Depends on choice of motor
Function:
After setting of parameters 102-106 Nameplate data,
a number of adjustments of various parameters is
carried out automatically, including stator resistance
RS. A manually entered RSmust apply to a cold mo-
tor. The shaft performance can be improved by
fine-tuning RSand XS, see procedure below.
NB!:
Parameters 108 Stator resistance RSand 109
Stator reactance XSare normally not to be
changed if nameplate data has been set.
Description of choice:
RScan be set as follows:
1. Use the factory settings of RSwhich the fre-
quency converter itself chooses on the basis of
the motor nameplate data
2. The value is stated by the motor supplier.
3. The value is obtained through manual measure-
ments: RScan be calculated by measuring the
resistance RPHASE-PHASE between two phase ter-
minals. Where RPHASE-PHASE is lower than 1-2
Ohms (typical for motors > 5.5 kW, 400 V), a spe-
cial Ohm-meter should be used (Thomson-bridge
or similar). RS= 0.5 x RPHASE-PHASE
4. RSis set automatically when AMT has been com-
pleted. See parameter 107 Auto motor adaption.
109
109 Stator reactance XS
(STATOR REACTANCE)
Value:
0.00 - X,XX

✭Depends on choice of motor
Function:
After setting of parameters 102-106 Nameplate data,
a number of adjustments of various parameters are
made automatically, including stator reactance XS.
The shaft performance can be improved by fine-
tuning RSand XS, see procedure below.
✭= factory setting. () = display text [] = value for use in communication via serial communication port
MG.28.A5.02 - VLT is a registered Danfoss trade mark 17
Programming

VLT®2800 Series
Description of choice:
XScan be set as follows:
1. The value is stated by the motor supplier.
2. The value is obtained through manual measure-
ments XSis obtained by connecting a motor to
mains and measuring the phase-phase voltage
UMand the idle current
8
.
Xs =
Um
p
3xI 
3. Use the factory settings of XSwhich the fre-
quency converter itself chooses on the basis of
the motor nameplate data.
119
119 High start torque
(HIGH START TORQ.)
Value:
0.0 - 0.5 sec. ✭0.0 sec.
Function:
To ensure a high start torque approx. 1.8 x IINV. can
be permitted for max. 0.5 sec. The current is, how-
ever, limited by the frequency converter’s (inverter’s)
safety limit. 0 sec. corresponds to no high start
torque.
Description of choice:
Set the necessary time for which a high start torque
is required.
120
120 Start delay
(START DELAY)
Value:
0.0 - 10.0 sec. ✭0.0 sec.
Function:
This parameter enables a delay of the start-up time
after the conditions for start have been fulfilled.
When the time has passed, the output frequency will
start by ramping up to the reference.
Description of choice:
Set the necessary time before commencing to accel-
erate.
121
121 Start function
(START FUNCTION)
Value:
DC hold during start delay time
(DC HOLD/DELAY TIME) [0]
DC brake during start delay time
(DC BRAKE/DELAY TIME) [1]
✭Coasting during start delay time
(COAST/DELA Y TIME) [2]
Start frequency/voltage clockwise
(CLOCKWISE OPERATION) [3]
Start frequency/voltage in reference direction
(VERTICAL OPERATION) [4]
Function:
This is where to choose the required mode during
the start delay time (parameter 120 Start delay time).
Description of choice:
Select DC hold during start delay time [0] to ener-
gize the motor with a DC hold voltage during the
start delay time. Set voltage in parameter 137 DC
hold voltage.
Choose DC brake during start delay time [1] to ener-
gize the motor with a DC brake voltage during the
start delay time. Set voltage in parameter 132 DC
brake voltage.
Choose Coasting during start delay time [2] and the
motor will not be controlled by the frequency con-
verter during the start delay time (inverter turned off).
Choose Start frequency/voltage clockwise [3] to ob-
tained the function described in parameter 130 Start
frequency and 131 Voltage at start during start delay
time. Regardless of the value assumed by the refer-
ence signal, the output frequency equals the setting
in parameter 130 Start frequency and the output
voltage will correspond to the setting in parameter
131 Voltage at start.
This functionality is typically used in hoist applica-
tions. It is used in particular in applications in which
a cone anchor motor is applied, where the direction
of rotation is to start clockwise followed by the refer-
ence direction.
Select Start frequency/voltage in reference direction
[4] to obtain the function described in parameter 130
Start frequency and 131 Voltage at start during the
start delay time.
The direction of rotation of the motor will always fol-
low in the reference direction. If the reference signal
equals zero, the output frequency will equal 0 Hz,
while the output voltage will correspond to the set-
ting in parameter 131 Voltage at start. If the
reference signal is different from zero, the output fre-
quency will equal parameter 130 Start frequency
and the output voltage will equal parameter 131 Volt-
age at start. This functionality is used typically for
hoist applications with counterweight. It is used in
particular for applications in which a cone anchor
motor is applied. The cone anchor motor can break
✭= factory setting. () = display text [] = value for use in communication via serial communication port
MG.28.A5.02 - VLT is a registered Danfoss trade mark
18

VLT®2800 Series
away using parameter 130 Start frequency and pa-
rameter 131 Voltage at start.
122
122 Function at stop
(FUNCTION AT STOP)
Value:
✭Coasting (COAST) [0]
DC hold (DC HOLD) [1]
Function:
This is where to choose the function of the fre-
quency converter after the output frequency has
become lower than the value in parameter 123 The
min. frequency for activation of function at stop or
after a stop command and when the output fre-
quency has been ramped down to 0 Hz.
Description of choice:
Select Coasting [0] if the frequency converter is to
’let go’of the motor (inverter turned off).
Select DC hold [1] if parameter 137 DC hold voltage
is to be activated.
123
123 Min. frequency for activation of function at
stop
(MIN.F.FUNC.STOP)
Value:
0,1 - 10 Hz ✭0,1 Hz
Function:
In this parameter, the output frequency is set at
which the function selected in parameter 122 Func-
tion at stop is to be activated.
Description of choice:
Set the required output frequency.
126
126 DC brake time
(DC BRAKING TIME)
Value:
0 - 60 sec. ✭10 sec
Function:
In this parameter, the DC brake time is set at which
parameter 132 DC brake voltage is to be active.
Description of choice:
Set the required time.
127
127 DC brake cut-in frequency
(DC BRAKE CUT-IN)
Value:
0.0 (OFF) - par. 202 Output frequency high limit,
fMAX ✭OFF
Function:
In this parameter, the DC brake cut-in frequency is
set at which the DC brake is to be activated in con-
nection with a stop command.
Description of choice:
Set the required frequency.
128
128 Thermal motor protection
(MOT.THERM PROTEC)
Value:
✭No protection (NO PROTECTION) [0]
Thermistor warning
(THERMISTOR WARN) [1]
Thermistor trip (THERMISTOR TRIP) [2]
ETR warning 1 (ETR WARNING 1) [3]
ETR trip 1 (ETR TRIP 1) [4]
ETR warning 2 (ETR WARNING 2) [5]
ETR trip 2 (ETR TRIP 2) [6]
ETR warning 3 (ETR WARNING 3) [7]
ETR trip 3 (ETR TRIP 3) [8]
ETR warning 4 (ETR WARNING 4) [9]
ETR trip 4 (ETR TRIP 4) [10]
Function:
The frequency converter can monitor the motor tem-
perature in two different ways:
- Via a PTC thermistor that is mounted on the
motor. The thermistor is connected between ter-
minal 50 (+10V) and one of the digital input
terminals 18, 19, 27 or 29. See parameter 300
Digital inputs.
- Thermal load calculation (ETR - Electronic Ther-
mal Relay), based on present load and time. This
is compared with the rated motor current IM,N and
rated motor frequency fM,N. The calculations take
into account the need for lower loading at low
speeds due to the motor’s internal ventilation be-
ing reduced.
✭= factory setting. () = display text [] = value for use in communication via serial communication port
MG.28.A5.02 - VLT is a registered Danfoss trade mark 19
Programming

VLT®2800 Series
ETR functions 1-4 do not begin to calculate the load
until you switch to the Setup in which they have
been selected. This means that you can use the
ETR function even when changing between two or
more motors.
Description of choice:
Select No protection [0] if you do not want a warning
or trip when a motor is overloaded.
Select Thermistor warning [1] if you want a warning
when the connected thermistor becomes too hot.
Select Thermistor trip [2] if you want a trip when the
connected thermistor becomes too hot.
Select ETR Adv. if you want a warning when the
motor is overloaded according to the calculations.
You can also programme the frequency converter to
give a warning signal via the digital output.
Select ETR Trip if you want a trip when the motor is
overloaded according to the calculations.
Select ETR warning 1-4 if you want a warning when
the motor is overloaded according to the calculations.
You can also programme the frequency converter to
give a warning signal via one of the digital outputs.
Select ETR Trip 1-4 if you want a trip when the mo-
tor is overloaded according to the calculations.
NB!:
This function cannot protect the individual
motors in the case of motors linked in parallel.
130
130 Start frequency
(START FREQUENCY)
Value:
0.0 - 10.0 Hz ✭0.0 Hz
Function:
The start frequency is active for the time set in pa-
rameter 120 Start delay, after a start command. The
output frequency will ’jump’to the next preset fre-
quency. Certain motors, such as conical anchor
motors, need an extra voltage/start frequency
(boost) at start to disengage the mechanical brake.
To achieve this parameters 130 Start frequency and
131 Initial voltage are used.
Description of choice:
Set the required start frequency. It is a precondition
that parameter 121 Start function, is set to Start fre-
quency/voltage clockwise [3] or Start frequency
voltage in reference direction [4] and that in parame-
ter 120 Start delay a time is set and a reference
signal is present.
131
131 Initial voltage
(INITIAL VOLTAGE)
Value:
0.0 - 200.0 V ✭0.0 V
Function:
Initial voltage is active for the time set in parameter
120 Start delay, after a start command. This param-
eter can be used for example for lifting/dropping
applications (conical anchor motors).
Description of choice:
Set the required voltage necessary to cut out the
mechanical brake. It is assumed that parameter 121
Start function, is set to Start frequency/voltage clock-
wise [3] or Start frequency/voltage in reference
direction [4] and that in parameter 120 Start delay a
time is set, and that a reference signal is present.
132
132 DC brake voltage
(DC BRAKE VOLTAGE)
Value:
0 - 100% of max. DC brake voltage ✭0%
Function:
In this parameter, the DC brake voltage is set which
is to be activated at stop when the DC brake
frequency set in parameter 127 DC brake cut-in fre-
quency is reached, or if DC braking inverse is active
via a digital input or via serial communication. Sub-
sequently, the DC brake voltage will be active for the
time set in parameter 126 DC brake time.
✭= factory setting. () = display text [] = value for use in communication via serial communication port
MG.28.A5.02 - VLT is a registered Danfoss trade mark
20